Home / 5,416.68-8,118.21-2,911.71

Finding the Fourth Proportional to 5,416.68, 8,118.21 and 2,911.71

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Solution

The fourth proportional to 5,416.68, 8,118.21 and 2,911.71 is: 4,363.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.68 : 8,118.21 = 2,911.71 : x
  2. Step 2: Convert to fraction form
    5,416.68/8,118.21 = 2,911.71/x
  3. Step 3: Cross multiply
    5,416.68x = 8,118.21 × 2,911.71
  4. Step 4: Simplify right side
    5,416.68x = 23,637,873.24
  5. Step 5: Solve for x
    x = 23,637,873.24/5,416.68
  6. Step 6: Final answer
    x = 4,363.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.